Jeg tror flammelyspærene var en form for glimlampe, ikke glødelampe. Mener lyset kom fra en gnistutlading mellom to flammeformede plater. Det gav et blafrende rødgult lys. Neon?
Arne Andersen,
February 19, 2014
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1 comment
Arne Andersen, February 19, 2014
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